Shimano Ultegra Di2 Front Wire Harness

With plug in and pedal away simplicity, Shimano's Di2 digital electronic shifting system puts fast and precise gear changes at your fingertips. This easy-to-install front wire harness connects your left and right Ultegra Di2 Dual Control levers to each other and has a connection for an SD50 wire (sold separately, see 50-8599, 50-8600, 50-8601), which joins both levers to the junction box (also sold separately, see 50-8597).

Connects your Ultegra Di2 Dual Control levers to each other, and has an input for the wire that connects both levers to the junction box